Saturday, July11, 2020
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Marine Weather and Tides
Kaktovik, AK

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 3:36AMSunset 12:16AM Saturday July 11, 2020 9:40 AM AKDT (17:40 UTC) Moonrise 12:27AMMoonset 11:40AM Illumination 63% Phase: Waning Gibbous; Moon at 21 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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7 Day Forecast for Marine Location Near Kaktovik, AK
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location: 70.16, -145.98     debug


Area Discussion for -
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FXAK69 PAFG 111452 AFDAFG

Northern Alaska Forecast Discussion National Weather Service Fairbanks AK 652 AM AKDT Sat Jul 11 2020

SYNOPSIS. Highlights are: A thermal low pressure trough that lies from Northway to McGrath to Noatak will remain in place today, then move to Eagle to Anvik to Anaktuvuk Pass by 4pm Sun, then to Anvik to Arctic Village to Old Crow by 4pm Mon. Expect isolated to scattered showers along this trough today, with isolated to widely scattered PM thunderstorms, while the area north of the trough is partly cloudy with at or above normal temperatures. Will see more widespread showers in the Alaska Range this afternoon through Sunday which could drop another half inch to one inch of rain and cause rapid rises on small streams and possible rock and mud slides. The showers and thunderstorms will drift north with the trough Sun and Mon and temperatures will be at or just below normal for the Interior and West Coast.

Dense fog along the Arctic Coast will thin this morning, but some fog will persist into Mon.

An Arctic cold front in the high Arctic will move south over the Arctic Coast tonight and continue south to the Brooks Range on Sun, then persist there into Mon. This will bring much colder air and possible snow to the North Slope and Brooks Range Sun and Mon.

Aloft . The long wave pattern consists of a ridge over the Bering Sea that stretches north to the North Pole, and a trough that stretches from the Canadian Archipelago south across eastern Alaska into the Gulf of Alaska. A series of strong short wave troughs will move from the Canadian Arctic southwest over Alaska through Mon will cause the long wave trough to retrograde over Mainland Alaska this weekend. This will cause a cooling this weekend, and will see areas of showers and isolated to scattered thunderstorms over the Interior with each of the short wave troughs.

A weak short wave trough over the SE Interior will weaken tonight. this is causing scattered showers now and will cause isolated PM thunderstorms.

A strong short wave trough from Koyuk west over Norton Sound will move south over Anvik this afternoon, and then remain near Anvik through Sun and weaken. This is causing scattered showers and isolated thunderstorms now over Norton Sound, and will cause widespread showers and widely scattered thunderstorms this afternoon and evening over SW Alaska.

A third and strong short wave over the high Arctic will move south over the Brooks Range Sun afternoon, and over the NE Interior Sun night. This will cause scattered showers and isolated thunderstorms over the south slopes of the Eastern Brooks Range Sun PM.

Surface . High pressure from the Chukchi Sea south over the Bering Sea will persist through Sun. This will cause NE-N winds along the Arctic and West Coast today through Sun along with stratus and fog along north facing shores.

An Arctic cold front in the high Arctic will move south over the Arctic Coast tonight and continue south to the Brooks Range on Sun, then persist there into Mon. This will bring much colder air and possible snow to the North Slope and Brooks Range Sun and Mon.

A weak low pressure trough that lies over the south slopes of the Brooks Range will persist into Sun. This will cause isolated PM showers today, and isolated PM thunderstorms on Sun.

A thermal low pressure trough that lies from Northway to McGrath to Noatak will remain in place today, then move to Eagle to Anvik to Anaktuvuk Pass by 4pm Sun, then to Anvik to Arctic Village to Old Crow by 4pm Mon. Expect isolated to scattered showers along this trough today, with isolated to widely scattered PM thunderstorms, while the area north of the trough is partly cloudy with at or above normal temperatures. Will see more widespread showers in the Alaska Range this afternoon through Sunday which could drop another half inch to one inch of rain and cause rapid rises on small streams and possible rock and mud slides. The showers and thunderstorms will drift north with the trough Sun and Mon, and temperatures will be at or just below normal for the Interior and West Coast.

DISCUSSION. AWIPS issues make it difficult in assessing initializations of models aloft at 00Z. Models show similar solutions aloft through 4pm Sun, then the EMCF is a bit faster than the GFS and NAM moving features east for Sun night and Mon. At this time favor the slower GFS and NAM solutions on features aloft.

Regarding precipitation, the NAM has a much smaller areal coverage Sat compared to the ECMF and GFS. Favor the broader areal coverage of the GFS and ECMF through 4pm Sun, as these models verify better right now with areal coverage. After 4pm Sun, will use the GFS due to its preferred solutions aloft.

At the Surface at 06Z, the NAM, GFS and ECMF verify well. All models show similar solutions at the surface through 4pm Sun, then the ECMF is a bit faster moving features east. Favor the slower GFS and NAM for Sun night and Mon.

Bottom line is favor a blend of the GFS and ECMF for precip, clouds, temperatures and winds through 4pm Sun, then a blend of the GFS and NAM for Sun night and Mon.

Coastal Hazard Potential Days 3 and 4 . None.

FIRE WEATHER. A weak low pressure trough that lies over the south slopes of the Brooks Range will persist into Sun. This will cause isolated PM showers today, and isolated PM thunderstorms on Sun.

A thermal low pressure trough that lies from Northway to McGrath to Noatak will remain in place today, then move to Eagle to Anvik to Anaktuvuk Pass by 4pm Sun, then to Anvik to Arctic Village to Old Crow by 4pm Mon. Expect isolated scattered showers along this trough, with isolated to widely scattered PM thunderstorms. The showers and thunderstorms will drift north with the trough through Mon. Today will be warm and dry over NE and NW Interior with highs in the 70s and RH in the 25-35% range, while the remainder will be near normal. Temperatures will be at or below normal Sun and Mon with rising RH.

HYDROLOGY. Water is rising on rivers draining into the Tanana River and over the Tanana River, but no flooding is expected.

The Alaska Range has between 0.25 and 0.60 inch of rain on Fri. Will see widespread showers in the Alaska Range this afternoon through Sunday which could drop another half inch to one inch of rain, and cause rapid rises on small streams along with possible rock and mud slides between this afternoon and Sun night.

AFG WATCHES/WARNINGS/ADVISORIES. Small Craft Advisory for PKZ210.

JB JUL 20


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Link to 5 minute data for PABA

Wind History from ABA (wind in knots)
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Last 24hrN6N6NE7E8NE9NE8NE8NE11NE10NE10E9NE10E8E9NE8NE10E6E9E8E9E9E8NE8E7
1 day ago----------W17W15W15W15W14NW12NW11NW10W4W6W5SW4CalmW4CalmSW3W33N6
2 days ago------------------------------------------------

Tide / Current Tables for Flaxman Island, Alaska
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Flaxman Island
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Sat -- 12:10 AM AKDT     0.24 feet Low Tide
Sat -- 01:25 AM AKDT     Moonrise
Sat -- 05:31 AM AKDT     0.55 feet High Tide
Sat -- 12:29 PM AKDT     0.07 feet Low Tide
Sat -- 12:39 PM AKDT     Moonset
Sat -- 06:40 PM AKDT     0.56 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Tide / Current Tables for
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Weather Map
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GEOS Local Image of Alaska    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific     Contential US     Full GOES-East
Ground Weather Radar Station Pedro Dome, AK
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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.